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  <div class="section" id="module-http">
<span id="http-http-modules"></span><h1><a class="reference internal" href="#module-http" title="http: HTTP status codes and messages"><code class="xref py py-mod docutils literal notranslate"><span class="pre">http</span></code></a> --- HTTP 模块<a class="headerlink" href="#module-http" title="永久链接至标题">¶</a></h1>
<p><strong>源代码:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/3.7/Lib/http/__init__.py">Lib/http/__init__.py</a></p>
<hr class="docutils" id="index-0" />
<p><a class="reference internal" href="#module-http" title="http: HTTP status codes and messages"><code class="xref py py-mod docutils literal notranslate"><span class="pre">http</span></code></a> 是一个包，它收集了多个用于处理超文本传输协议的模块:</p>
<ul class="simple">
<li><a class="reference internal" href="http.client.html#module-http.client" title="http.client: HTTP and HTTPS protocol client (requires sockets)."><code class="xref py py-mod docutils literal notranslate"><span class="pre">http.client</span></code></a> 是一个低层级的 HTTP 协议客户端；对于高层级的 URL 访问请使用 <a class="reference internal" href="urllib.request.html#module-urllib.request" title="urllib.request: Extensible library for opening URLs."><code class="xref py py-mod docutils literal notranslate"><span class="pre">urllib.request</span></code></a></li>
<li><a class="reference internal" href="http.server.html#module-http.server" title="http.server: HTTP server and request handlers."><code class="xref py py-mod docutils literal notranslate"><span class="pre">http.server</span></code></a> 包含基于 <a class="reference internal" href="socketserver.html#module-socketserver" title="socketserver: A framework for network servers."><code class="xref py py-mod docutils literal notranslate"><span class="pre">socketserver</span></code></a> 的基本 HTTP 服务类</li>
<li><a class="reference internal" href="http.cookies.html#module-http.cookies" title="http.cookies: Support for HTTP state management (cookies)."><code class="xref py py-mod docutils literal notranslate"><span class="pre">http.cookies</span></code></a> 包含一些有用来实现通过 cookies 进行状态管理的工具</li>
<li><a class="reference internal" href="http.cookiejar.html#module-http.cookiejar" title="http.cookiejar: Classes for automatic handling of HTTP cookies."><code class="xref py py-mod docutils literal notranslate"><span class="pre">http.cookiejar</span></code></a> 提供了 cookies 的持久化</li>
</ul>
<p><a class="reference internal" href="#module-http" title="http: HTTP status codes and messages"><code class="xref py py-mod docutils literal notranslate"><span class="pre">http</span></code></a> 也是一个通过 <a class="reference internal" href="#http.HTTPStatus" title="http.HTTPStatus"><code class="xref py py-class docutils literal notranslate"><span class="pre">http.HTTPStatus</span></code></a> 枚举定义了一些 HTTP 状态码以及相关联消息的模块</p>
<dl class="class">
<dt id="http.HTTPStatus">
<em class="property">class </em><code class="descclassname">http.</code><code class="descname">HTTPStatus</code><a class="headerlink" href="#http.HTTPStatus" title="永久链接至目标">¶</a></dt>
<dd><div class="versionadded">
<p><span class="versionmodified">3.5 新版功能.</span></p>
</div>
<p><a class="reference internal" href="enum.html#enum.IntEnum" title="enum.IntEnum"><code class="xref py py-class docutils literal notranslate"><span class="pre">enum.IntEnum</span></code></a> 的子类，它定义了组 HTTP 状态码，原理短语以及用英语书写的长描述文本。</p>
<p>用法:</p>
<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">http</span> <span class="k">import</span> <span class="n">HTTPStatus</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">HTTPStatus</span><span class="o">.</span><span class="n">OK</span>
<span class="go">&lt;HTTPStatus.OK: 200&gt;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">HTTPStatus</span><span class="o">.</span><span class="n">OK</span> <span class="o">==</span> <span class="mi">200</span>
<span class="go">True</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">http</span><span class="o">.</span><span class="n">HTTPStatus</span><span class="o">.</span><span class="n">OK</span><span class="o">.</span><span class="n">value</span>
<span class="go">200</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">HTTPStatus</span><span class="o">.</span><span class="n">OK</span><span class="o">.</span><span class="n">phrase</span>
<span class="go">&#39;OK&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">HTTPStatus</span><span class="o">.</span><span class="n">OK</span><span class="o">.</span><span class="n">description</span>
<span class="go">&#39;Request fulfilled, document follows&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="nb">list</span><span class="p">(</span><span class="n">HTTPStatus</span><span class="p">)</span>
<span class="go">[&lt;HTTPStatus.CONTINUE: 100&gt;, &lt;HTTPStatus.SWITCHING_PROTOCOLS: 101&gt;, ...]</span>
</pre></div>
</div>
</dd></dl>

<div class="section" id="http-status-codes">
<span id="id1"></span><h2>HTTP 状态码<a class="headerlink" href="#http-status-codes" title="永久链接至标题">¶</a></h2>
<p>已支持并且已在 <a class="reference internal" href="#http.HTTPStatus" title="http.HTTPStatus"><code class="xref py py-class docutils literal notranslate"><span class="pre">http.HTTPStatus</span></code></a> <a class="reference external" href="https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml">IANA 注册</a> 的状态码有：</p>
<table border="1" class="docutils">
<colgroup>
<col width="6%" />
<col width="29%" />
<col width="65%" />
</colgroup>
<thead valign="bottom">
<tr class="row-odd"><th class="head">状态码</th>
<th class="head">映射名</th>
<th class="head">详情</th>
</tr>
</thead>
<tbody valign="top">
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">100</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">CONTINUE</span></code></td>
<td>HTTP/1.1 <span class="target" id="index-1"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc7231.html"><strong>RFC 7231</strong></a>, Section 6.2.1</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">101</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">SWITCHING_PROTOCOLS</span></code></td>
<td>HTTP/1.1 RFC 7231, Section 6.2.2</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">102</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">PROCESSING</span></code></td>
<td>WebDAV RFC 2518, Section 10.1</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">200</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">OK</span></code></td>
<td>HTTP/1.1 RFC 7231, Section 6.3.1</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">201</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">CREATED</span></code></td>
<td>HTTP/1.1 RFC 7231, Section 6.3.2</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">202</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">ACCEPTED</span></code></td>
<td>HTTP/1.1 RFC 7231, Section 6.3.3</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">203</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">NON_AUTHORITATIVE_INFORMATION</span></code></td>
<td>HTTP/1.1 RFC 7231, Section 6.3.4</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">204</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">NO_CONTENT</span></code></td>
<td>HTTP/1.1 RFC 7231, Section 6.3.5</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">205</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">RESET_CONTENT</span></code></td>
<td>HTTP/1.1 RFC 7231, Section 6.3.6</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">206</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">PARTIAL_CONTENT</span></code></td>
<td>HTTP/1.1 RFC 7233, Section 4.1</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">207</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">MULTI_STATUS</span></code></td>
<td>WebDAV RFC 4918, Section 11.1</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">208</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">ALREADY_REPORTED</span></code></td>
<td>WebDAV Binding Extensions RFC 5842, Section 7.1 (Experimental)</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">226</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">IM_USED</span></code></td>
<td>Delta Encoding in HTTP RFC 3229, Section 10.4.1</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">300</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">MULTIPLE_CHOICES</span></code>：有多种资源可选择</td>
<td>HTTP/1.1 RFC 7231, Section 6.4.1</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">301</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">MOVED_PERMANENTLY</span></code>：永久移动</td>
<td>HTTP/1.1 RFC 7231, Section 6.4.2</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">302</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">FOUND</span></code>：临时移动</td>
<td>HTTP/1.1 RFC 7231, Section 6.4.3</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">303</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">SEE_OTHER</span></code>：已经移动</td>
<td>HTTP/1.1 RFC 7231, Section 6.4.4</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">304</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">NOT_MODIFIED</span></code>：没有修改</td>
<td>HTTP/1.1 RFC 7232, Section 4.1</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">305</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">USE_PROXY</span></code>：使用代理</td>
<td>HTTP/1.1 RFC 7231, Section 6.4.5</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">307</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">TEMPORARY_REDIRECT</span></code>：临时重定向</td>
<td>HTTP/1.1 <span class="target" id="index-20"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc7231.html"><strong>RFC 7231</strong></a>, Section 6.4.7</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">308</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">PERMANENT_REDIRECT</span></code>：永久重定向</td>
<td>Permanent Redirect <span class="target" id="index-21"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc7238.html"><strong>RFC 7238</strong></a>, Section 3 (Experimental)</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">400</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">BAD_REQUEST</span></code>：错误请求</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.1</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">401</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">UNAUTHORIZED</span></code>：未授权</td>
<td>HTTP/1.1 Authentication RFC 7235, Section 3.1</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">402</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">PAYMENT_REQUIRED</span></code>：保留，将来使用</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.2</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">403</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">FORBIDDEN</span></code>：禁止</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.3</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">404</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">NOT_FOUND</span></code>：没有找到</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.4</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">405</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">METHOD_NOT_ALLOWED</span></code>：该请求方法不允许</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.5</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">406</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">NOT_ACCEPTABLE</span></code>：不可接受</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.6</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">407</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">PROXY_AUTHENTICATION_REQUIRED</span></code>：要求使用代理验证身份</td>
<td>HTTP/1.1 Authentication RFC 7235, Section 3.1</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">408</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">REQUEST_TIMEOUT</span></code>：请求超时</td>
<td>HTTP/1.1 <span class="target" id="index-30"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc7231.html"><strong>RFC 7231</strong></a>, Section 6.5.7</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">409</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">CONFLICT</span></code>：冲突</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.8</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">410</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">GONE</span></code>：已经不在了</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.9</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">411</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">LENGTH_REQUIRED</span></code>：长度要求</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.10</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">412</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">PRECONDITION_FAILED</span></code>：前提条件错误</td>
<td>HTTP/1.1 RFC 7232, Section 4.2</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">413</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">REQUEST_ENTITY_TOO_LARGE</span></code>：请求体太大了</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.11</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">414</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">REQUEST_URI_TOO_LONG</span></code>：请求URI太长了</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.12</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">415</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">UNSUPPORTED_MEDIA_TYPE</span></code>：不支持的媒体格式</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.13</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">416</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">REQUESTED_RANGE_NOT_SATISFIABLE</span></code></td>
<td>HTTP/1.1 Range Requests RFC 7233, Section 4.4</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">417</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">EXPECTATION_FAILED</span></code>：期望失败</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.14</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">421</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">MISDIRECTED_REQUEST</span></code></td>
<td>HTTP/2 <span class="target" id="index-40"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc7540.html"><strong>RFC 7540</strong></a>, Section 9.1.2</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">422</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">UNPROCESSABLE_ENTITY</span></code>：可加工实体</td>
<td>WebDAV RFC 4918, Section 11.2</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">423</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">LOCKED</span></code>：锁着</td>
<td>WebDAV RFC 4918, Section 11.3</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">424</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">FAILED_DEPENDENCY</span></code>：失败的依赖</td>
<td>WebDAV RFC 4918, Section 11.4</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">426</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">UPGRADE_REQUIRED</span></code>：升级需要</td>
<td>HTTP/1.1 RFC 7231, Section 6.5.15</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">428</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">PRECONDITION_REQUIRED</span></code>：先决条件要求</td>
<td>Additional HTTP Status Codes RFC 6585</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">429</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">TOO_MANY_REQUESTS</span></code>：太多的请求</td>
<td>Additional HTTP Status Codes RFC 6585</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">431</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">REQUEST_HEADER_FIELDS_TOO_LARGE</span></code>：请求头太大</td>
<td>Additional HTTP Status Codes RFC 6585</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">500</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">INTERNAL_SERVER_ERROR</span></code>：内部服务错误</td>
<td>HTTP/1.1 RFC 7231, Section 6.6.1</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">501</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">NOT_IMPLEMENTED</span></code>：不可执行</td>
<td>HTTP/1.1 RFC 7231, Section 6.6.2</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">502</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">BAD_GATEWAY</span></code>：无效网关</td>
<td>HTTP/1.1 RFC 7231, Section 6.6.3</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">503</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">SERVICE_UNAVAILABLE</span></code>：服务不可用</td>
<td>HTTP/1.1 RFC 7231, Section 6.6.4</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">504</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">GATEWAY_TIMEOUT</span></code>：网关超时</td>
<td>HTTP/1.1 RFC 7231, Section 6.6.5</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">505</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">HTTP_VERSION_NOT_SUPPORTED</span></code>：HTTP版本不支持</td>
<td>HTTP/1.1 RFC 7231, Section 6.6.6</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">506</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">VARIANT_ALSO_NEGOTIATES</span></code>：服务器存在内部配置错误</td>
<td>透明内容协商在： HTTP <span class="target" id="index-60"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc2295.html"><strong>RFC 2295</strong></a>, Section 8.1 (实验性的)</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">507</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">INSUFFICIENT_STORAGE</span></code>：存储不足</td>
<td>WebDAV RFC 4918, Section 11.5</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">508</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">LOOP_DETECTED</span></code>：循环检测</td>
<td>WebDAV Binding Extensions RFC 5842, Section 7.2 (Experimental)</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate"><span class="pre">510</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">NOT_EXTENDED</span></code>：不扩展</td>
<td>WebDAV Binding Extensions RFC 5842, Section 7.2 (Experimental)</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate"><span class="pre">511</span></code></td>
<td><code class="docutils literal notranslate"><span class="pre">NETWORK_AUTHENTICATION_REQUIRED</span></code>：要求网络身份验证</td>
<td>Additional HTTP Status Codes <span class="target" id="index-58"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc6585.html"><strong>RFC 6585</strong></a>, Section 6</td>
</tr>
</tbody>
</table>
<p>为了保持向后兼容性，枚举值也以常量形式出现在 <a class="reference internal" href="http.client.html#module-http.client" title="http.client: HTTP and HTTPS protocol client (requires sockets)."><code class="xref py py-mod docutils literal notranslate"><span class="pre">http.client</span></code></a> 模块中，。 枚举名等于常量名 (例如 <code class="docutils literal notranslate"><span class="pre">http.HTTPStatus.OK</span></code> 也可以是 <code class="docutils literal notranslate"><span class="pre">http.client.OK</span></code>)。</p>
<div class="versionchanged">
<p><span class="versionmodified">在 3.7 版更改: </span>添加了 <code class="docutils literal notranslate"><span class="pre">421</span> <span class="pre">MISDIRECTED_REQUEST</span></code> 状态码。</p>
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